/**
 * Copyright (C) 2008 Motudo Studio
 * 
 * @author game@motudo.com (motudo lin)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package motudo.screen.domain;

import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;

import com.google.inject.Inject;

public class LabelUpdateServiceImpl implements IWidgetUpdateService {

	private final INextTimerService ntimer;

	private final static int TIME_UPDATE = 5000;

	private int count;

	private Display display;

	@Inject
	public LabelUpdateServiceImpl(INextTimerService aNtimer) {
		this.ntimer = aNtimer;
	}

	@Override
	public void setTarget(Composite parent) {

		if (display == null) {
			
			final Label label = new Label(parent, 0);
			
			label.setBackground(Display.getCurrent().getSystemColor(
					SWT.COLOR_BLACK));
			label.setForeground(Display.getCurrent().getSystemColor(
					SWT.COLOR_YELLOW));

			label.setText(ntimer.getInfo());
			
			display = Display.getCurrent();

			display.timerExec(TIME_UPDATE, new Runnable() {
				@Override
				public void run() {
					count++;
					label.setText(ntimer.getInfo());
					Display.getCurrent().timerExec(TIME_UPDATE, this);
				}
			});
		}
	}

}
